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high SiO2 slag out of the system, while also ... was constructed simultaneously with the new converter. The flue gas treatment equipment adopted for the new converter was the Oxygen Converter Gas Recovery System (OG), which is the same as the existing equipment. The utilities and water treatment equipment were expanded to meet the needs of the ...
RECYCLING OF PLATINUM GROUP METALS FROM AUTOMOTIVE CATALYSTS BY AN ACIDIC LEACHING PROCESS R. Rumpold University of Leoben J. Antrekowitsch University of Leoben Abstract The platinum group metals (PGMs) palladium, platinum, and rhodium represent the key materials for automotive exhaust gas treatment.
Steelmaking Technologies Contributing to Steel Industries –19– NKK TECHNICAL REVIEW (2003) De [Si] –ST siliconization. The reaction vessel is a ladle type, and the hot metal is vigorously stirred by injecting lime through a submerged lance. This method dramatically improved the oxygen efficiency for desiliconization over the conven
However, the current reclaiming ratio of waste steel in China is still low due to lack of advanced slag treatment equipment and technology. Utilization as sinter material Steel slag with CaO content above 50% can be used as sinter ore fluxing agent, partially replacing the commercial lime.
Converting is a type of metallurgical smelting that includes several processes; the most commercially important form is the treatment of molten metal sulfides to produce crude metal and slag, as in the case of copper and nickel converting. A nowuncommon form is batch treatment of pig iron to produce steel by the Bessemer process. The vessel used was called the Bessemer converter.
and treatment method using a rotary cooler as the main equipment. Studies on slag treatment process Two types of slag stem from iron and steelmaking processes: blast furnace and steelmaking slags. Various methods for granulating blast furnace slag using water were developed since the 1970s, and its use as blast furnace cement rapidly ...
Mineralogy of primary phases in slags and mattes from the Tsumeb smelter (Namibia) V. Ettler1*, Z. Johan2, B. Kříbek3, ... the Slag Mill has been used to retreat converter slag tailings (Tsumeb Corporation Ltd., 1987; Schneider ... Mineralogy of primary phases in slags and mattes from the Tsumeb smelter (Namibia) 5.
In 1996 the treatment equipment was installed in line of converter no. 1 of the steel shop of Thyssen Krupp Stahl AG, Duisburg, since then it has worked successfully. The free lime content of all slags determined produced by this treatment show amounts <1% by weight. Thus, they do not show any volume increase.
Steel Steel Openhearth steelmaking: Though it has been almost completely replaced by BOF and EAF steelmaking in many highly industrialized countries, the open hearth nevertheless accounts for about onesixth of all steel produced worldwide. The openhearth furnace (OHF) uses the heat of combustion of gaseous or liquid fuels to convert a charge of scrap and liquid blastfurnace iron to ...
Equipments for Core Sector. We Manufacture, Supply, Trade Export a wide range of Mechanical and Electrical Equipment for Steel Plant, Cement Plant, Steel Rolling Mill, Sugar Mill, Fertilizer Company, Paper Mill, Building Constructions Equipment, Petrochemicals Industry from spare parts to complete mills or Plants etc for all core sectors industries. ...
The electric furnace for tin concentrate smelting belongs to the category of electric arc resistance furnace. The current is supplied to the smelting bath through direct contact with slag (solid material) to generate electric arc and heat for reduction smelting.
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EXCEPTIONAL CASTING CAPABILITIES BROUGHT TO LIGHT. We are a leading manufacturer of high performance steel millrelated castings, including the world''s finest slag pots, coiler drums for steckel mill applications, mechanical mill parts and metalworking press castings.
melting furnaces, pressure pour furnaces and magnesium treatment vessels with minimal to no adverse effects on refractory linings. Slag Formation: The formation of slag in the melting of ferrous metals in the foundry is inevitable. The composition of slag varies with the type of melting process used and the type of iron or steel being melted.
Extraction of tin consists of three parts, tin ore concentration, smelting and refining. Cassiterite is the main source of tin ore, with specific gravity of /cm 3, density larger than most of, 90% of tin concentrate is mainly obtained from cassiterite through gravity separation.
High Temperatures Technologies Corp. Canada presents the products based on plasma technology for different fields such as waste treatment, nanomaterials production and others. High Temperature Technologies Corp. offer ecologically pure technology which purpose is a full decomposition of the treated waste without leaving harmful toxic waste and reception of useful products.
Primary Copper Smelting General1 Copper ore is produced in 13 states. In 1989, Arizona produced 60 percent of the total ... some of the impurities in the charge oxidize with the fluxes to form a slag on top of the molten bath, ... also treat converter gas effluent. Some multiple hearth and all fluidized bed roasters use sulfuric acid
Dissolution of Valuable Metals from Nickel Smelter Slags by Means of High Pressure Oxidative Acid Leaching Ilya Perederiy Degree of Doctor of Philosophy Graduate Department of Chemical Engineering and Applied Chemistry ... CHAPTER 5 COTREATMENT OF CONVERTER SLAG AND
producing a metallic alloy (referred to as black copper) and a slag phase. black The copper can be refined in different ways, whereof one is by using it as a secondary feed material for input to PeirceSmith converter. Consequently the load of minor s elements to the converter can be expected to increase with an increased treatment of escrap.
Converter slag In the same way as aircooled blast furnace slag, converter slag is cooled slowly by natural cooling and water spray in a cooling yard. It is then processed and used for various iron and steel slag (converter) applications. Approximately 110 kg of slag is generated for each ton of converter steel. Electric arc furnace slag
PDF | Several methods of reprocessing metallurgical (blast furnace) slag into materials for the building industry, based on melting aggregates with submerged combustion, were developed and tested.
Inductoheat Inc. is part of 40 companies that make up the Inductotherm Group. The Inductotherm Group offers advanced technology for the engineering, manufacturing, and service of thermal processing equipment used in the melting, heating, heat treating, forging, .
Oct 05, 1976· Treatment of converter slag . United States Patent . Abstract: A process for the production of copper from raw materials containing sulphur, zinc and more than % Ni calculated on the copper content. The material is melted to matte and the matte converted to white metal, whereafter the white metal is converted to copper and the zinc ...
In the Outotec PS Converting Process, the molten matte from the smelting furnace is converted into blister copper. Converting is carried out in two stages. The first stage is the slag blow, where iron contained in the matte is slagged and removed before the copper blow phase.
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